extension/openflowjava-extension-nicira/src/test/java/org/opendaylight/openflowjava/nx/codec/action/OutputReg2CodecTest.java

   1 /*
   2  * Copyright (c) 2018 SUSE LINUX GmbH.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.openflowjava.nx.codec.action;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertFalse;
  12
  13 import com.google.common.primitives.Longs;
  14 import io.netty.buffer.ByteBuf;
  15 import io.netty.buffer.ByteBufAllocator;
  16 import java.math.BigInteger;
  17 import org.junit.Before;
  18 import org.junit.Test;
  19 import org.opendaylight.openflowjava.nx.api.NiciraConstants;
  20 import org.opendaylight.openflowjava.protocol.api.util.EncodeConstants;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.Action;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.action.rev150203.actions.grouping.ActionBuilder;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.common.types.rev130731.ExperimenterId;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.action.container.action.choice.ActionOutputReg2;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.action.container.action.choice.ActionOutputReg2Builder;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflowjava.nx.action.rev140421.ofj.nx.action.output.reg2.grouping.NxActionOutputReg2Builder;
  27 import org.opendaylight.yangtools.yang.common.Uint16;
  28 import org.opendaylight.yangtools.yang.common.Uint64;
  29
  30 public class OutputReg2CodecTest {
  31
  32     private static final int LENGTH = 24;
  33     private static final byte SUBTYPE = 32;
  34
  35     private static final Uint16 OFS_N_BITS = Uint16.ONE;
  36     private static final int SRC = 2;
  37     private static final Uint16 MAX_LEN = Uint16.TWO;
  38     private static final long SRC_EXP = 0xFFFF000000000000L | SRC;
  39     private static final Uint64 SRC_EXP_BIGINT = Uint64.valueOf(new BigInteger(1, Longs.toByteArray(SRC_EXP)));
  40
  41     private OutputReg2Codec outReg2Codec;
  42     private ByteBuf buffer;
  43
  44     @Before
  45     public void setUp() {
  46         outReg2Codec = new OutputReg2Codec();
  47         buffer = ByteBufAllocator.DEFAULT.buffer();
  48     }
  49
  50     @Test
  51     public void deserializeTest() {
  52         createBuffer(buffer, false);
  53
  54         Action action = outReg2Codec.deserialize(buffer);
  55
  56         ActionOutputReg2 result = (ActionOutputReg2) action.getActionChoice();
  57
  58         assertEquals(OFS_N_BITS, result.getNxActionOutputReg2().getNBits());
  59         assertEquals(MAX_LEN, result.getNxActionOutputReg2().getMaxLen());
  60         assertEquals(Uint64.valueOf(SRC), result.getNxActionOutputReg2().getSrc());
  61         assertFalse(buffer.isReadable());
  62     }
  63
  64     @Test
  65     public void deserializeWithExperimenterTest() {
  66         createBuffer(buffer, true);
  67
  68         Action action = outReg2Codec.deserialize(buffer);
  69
  70         ActionOutputReg2 result = (ActionOutputReg2) action.getActionChoice();
  71
  72         assertEquals(OFS_N_BITS, result.getNxActionOutputReg2().getNBits());
  73         assertEquals(MAX_LEN, result.getNxActionOutputReg2().getMaxLen());
  74         assertEquals(SRC_EXP_BIGINT, result.getNxActionOutputReg2().getSrc());
  75         assertFalse(buffer.isReadable());
  76     }
  77
  78     @Test
  79     public void serializeTest() {
  80         Action action = createAction(Uint64.valueOf(SRC));
  81         outReg2Codec.serialize(action, buffer);
  82
  83         //SerializeHeader part
  84         assertEquals(EncodeConstants.EXPERIMENTER_VALUE, buffer.readUnsignedShort());
  85         assertEquals(LENGTH, buffer.readUnsignedShort());
  86         assertEquals(NiciraConstants.NX_VENDOR_ID.intValue(), buffer.readUnsignedInt());
  87         assertEquals(SUBTYPE, buffer.readUnsignedShort());
  88
  89         //Serialize part
  90         assertEquals(OFS_N_BITS.shortValue(), buffer.readUnsignedShort());
  91         assertEquals(MAX_LEN.shortValue(), buffer.readUnsignedShort());
  92         assertEquals(SRC, buffer.readUnsignedInt());
  93
  94         // padding
  95         assertEquals(0, buffer.readUnsignedInt());
  96         assertEquals(0, buffer.readUnsignedShort());
  97
  98         assertFalse(buffer.isReadable());
  99     }
 100
 101     @Test
 102     public void serializeWithExperimenterTest() {
 103         Action action = createAction(SRC_EXP_BIGINT);
 104         outReg2Codec.serialize(action, buffer);
 105
 106         //SerializeHeader part
 107         assertEquals(EncodeConstants.EXPERIMENTER_VALUE, buffer.readUnsignedShort());
 108         assertEquals(LENGTH, buffer.readUnsignedShort());
 109         assertEquals(NiciraConstants.NX_VENDOR_ID.intValue(), buffer.readUnsignedInt());
 110         assertEquals(SUBTYPE, buffer.readUnsignedShort());
 111
 112         //Serialize part
 113         assertEquals(OFS_N_BITS.shortValue(), buffer.readUnsignedShort());
 114         assertEquals(MAX_LEN.shortValue(), buffer.readUnsignedShort());
 115         assertEquals(SRC_EXP, buffer.readLong());
 116
 117         // padding
 118         assertEquals(0, buffer.readUnsignedShort());
 119
 120         assertFalse(buffer.isReadable());
 121     }
 122
 123     private static Action createAction(final Uint64 src) {
 124         ExperimenterId experimenterId = new ExperimenterId(NiciraConstants.NX_VENDOR_ID);
 125         ActionBuilder actionBuilder = new ActionBuilder();
 126         actionBuilder.setExperimenterId(experimenterId);
 127         final ActionOutputReg2Builder actionOutputReg2Builder = new ActionOutputReg2Builder();
 128         NxActionOutputReg2Builder nxActionOutputBuilder = new NxActionOutputReg2Builder();
 129
 130         nxActionOutputBuilder.setNBits(OFS_N_BITS);
 131         nxActionOutputBuilder.setSrc(src);
 132         nxActionOutputBuilder.setMaxLen(MAX_LEN);
 133
 134         actionOutputReg2Builder.setNxActionOutputReg2(nxActionOutputBuilder.build());
 135         actionBuilder.setActionChoice(actionOutputReg2Builder.build());
 136
 137         return actionBuilder.build();
 138     }
 139
 140     private static void createBuffer(final ByteBuf message, final boolean withExpSrc) {
 141         message.writeShort(EncodeConstants.EXPERIMENTER_VALUE);
 142         message.writeShort(LENGTH);
 143         message.writeInt(NiciraConstants.NX_VENDOR_ID.intValue());
 144         message.writeShort(SUBTYPE);
 145         message.writeShort(OFS_N_BITS.shortValue());
 146         message.writeShort(MAX_LEN.shortValue());
 147         if (withExpSrc) {
 148             message.writeLong(SRC_EXP);
 149             message.writeZero(2);
 150         } else {
 151             message.writeInt(SRC);
 152             message.writeZero(6);
 153         }
 154     }
 155 }